[tip: x86/apic] x86/apic: Get rid of apic:: Dest_logical
From: tip-bot2 for Thomas Gleixner
Date: Thu Oct 29 2020 - 08:16:29 EST
The following commit has been merged into the x86/apic branch of tip:
Commit-ID: e57d04e5fa00f7649d4c00796f8d12054799be4a
Gitweb: https://git.kernel.org/tip/e57d04e5fa00f7649d4c00796f8d12054799be4a
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Sat, 24 Oct 2020 22:35:07 +01:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Wed, 28 Oct 2020 20:26:24 +01:00
x86/apic: Get rid of apic:: Dest_logical
struct apic has two members which store information about the destination
mode: dest_logical and irq_dest_mode.
dest_logical contains a mask which was historically used to set the
destination mode in IPI messages. Over time the usage was reduced and the
logical/physical functions were seperated.
There are only a few places which still use 'dest_logical' but they can
use 'irq_dest_mode' instead.
irq_dest_mode is actually a boolean where 0 means physical destination mode
and 1 means logical destination mode. Of course the name does not reflect
the functionality. This will be cleaned up in a subsequent change.
Remove apic::dest_logical and fixup the remaining users.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20201024213535.443185-8-dwmw2@xxxxxxxxxxxxx
---
arch/x86/include/asm/apic.h | 2 --
arch/x86/kernel/apic/apic.c | 2 +-
arch/x86/kernel/apic/apic_flat_64.c | 8 ++------
arch/x86/kernel/apic/apic_noop.c | 4 +---
arch/x86/kernel/apic/apic_numachip.c | 8 ++------
arch/x86/kernel/apic/bigsmp_32.c | 4 +---
arch/x86/kernel/apic/probe_32.c | 4 +---
arch/x86/kernel/apic/x2apic_cluster.c | 4 +---
arch/x86/kernel/apic/x2apic_phys.c | 4 +---
arch/x86/kernel/apic/x2apic_uv_x.c | 4 +---
arch/x86/kernel/smpboot.c | 5 +++--
arch/x86/xen/apic.c | 4 +---
12 files changed, 15 insertions(+), 38 deletions(-)
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 37a08f3..e230ed2 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -306,8 +306,6 @@ struct apic {
void (*send_IPI_all)(int vector);
void (*send_IPI_self)(int vector);
- /* dest_logical is used by the IPI functions */
- u32 dest_logical;
u32 disable_esr;
enum apic_delivery_modes delivery_mode;
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 113f6ca..29d28b3 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1591,7 +1591,7 @@ static void setup_local_APIC(void)
apic->init_apic_ldr();
#ifdef CONFIG_X86_32
- if (apic->dest_logical) {
+ if (apic->irq_dest_mode == 1) {
int logical_apicid, ldr_apicid;
/*
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index 6df837f..bbb1b89 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -117,11 +117,9 @@ static struct apic apic_flat __ro_after_init = {
.irq_dest_mode = 1, /* logical */
.disable_esr = 0,
- .dest_logical = APIC_DEST_LOGICAL,
- .check_apicid_used = NULL,
+ .check_apicid_used = NULL,
.init_apic_ldr = flat_init_apic_ldr,
-
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
@@ -210,11 +208,9 @@ static struct apic apic_physflat __ro_after_init = {
.irq_dest_mode = 0, /* physical */
.disable_esr = 0,
- .dest_logical = 0,
- .check_apicid_used = NULL,
+ .check_apicid_used = NULL,
.init_apic_ldr = physflat_init_apic_ldr,
-
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index 4fc934b..38f167c 100644
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -100,11 +100,9 @@ struct apic apic_noop __ro_after_init = {
.irq_dest_mode = 1,
.disable_esr = 0,
- .dest_logical = APIC_DEST_LOGICAL,
- .check_apicid_used = default_check_apicid_used,
+ .check_apicid_used = default_check_apicid_used,
.init_apic_ldr = noop_init_apic_ldr,
-
.ioapic_phys_id_map = default_ioapic_phys_id_map,
.setup_apic_routing = NULL,
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index db715d0..4ebf9fe 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -250,11 +250,9 @@ static const struct apic apic_numachip1 __refconst = {
.irq_dest_mode = 0, /* physical */
.disable_esr = 0,
- .dest_logical = 0,
- .check_apicid_used = NULL,
+ .check_apicid_used = NULL,
.init_apic_ldr = flat_init_apic_ldr,
-
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
@@ -299,11 +297,9 @@ static const struct apic apic_numachip2 __refconst = {
.irq_dest_mode = 0, /* physical */
.disable_esr = 0,
- .dest_logical = 0,
- .check_apicid_used = NULL,
+ .check_apicid_used = NULL,
.init_apic_ldr = flat_init_apic_ldr,
-
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index 7f6461f..64c375b 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -132,11 +132,9 @@ static struct apic apic_bigsmp __ro_after_init = {
.irq_dest_mode = 0,
.disable_esr = 1,
- .dest_logical = 0,
- .check_apicid_used = bigsmp_check_apicid_used,
+ .check_apicid_used = bigsmp_check_apicid_used,
.init_apic_ldr = bigsmp_init_apic_ldr,
-
.ioapic_phys_id_map = bigsmp_ioapic_phys_id_map,
.setup_apic_routing = bigsmp_setup_apic_routing,
.cpu_present_to_apicid = bigsmp_cpu_present_to_apicid,
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index 77c6e2e..97652aa 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -74,11 +74,9 @@ static struct apic apic_default __ro_after_init = {
.irq_dest_mode = 1,
.disable_esr = 0,
- .dest_logical = APIC_DEST_LOGICAL,
- .check_apicid_used = default_check_apicid_used,
+ .check_apicid_used = default_check_apicid_used,
.init_apic_ldr = default_init_apic_ldr,
-
.ioapic_phys_id_map = default_ioapic_phys_id_map,
.setup_apic_routing = setup_apic_flat_routing,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index f77e9fb..53390fc 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -188,11 +188,9 @@ static struct apic apic_x2apic_cluster __ro_after_init = {
.irq_dest_mode = 1, /* logical */
.disable_esr = 0,
- .dest_logical = APIC_DEST_LOGICAL,
- .check_apicid_used = NULL,
+ .check_apicid_used = NULL,
.init_apic_ldr = init_x2apic_ldr,
-
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 437e843..ee0c4d0 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -161,11 +161,9 @@ static struct apic apic_x2apic_phys __ro_after_init = {
.irq_dest_mode = 0, /* physical */
.disable_esr = 0,
- .dest_logical = 0,
- .check_apicid_used = NULL,
+ .check_apicid_used = NULL,
.init_apic_ldr = init_x2apic_ldr,
-
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 49deefd..d21a685 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -811,11 +811,9 @@ static struct apic apic_x2apic_uv_x __ro_after_init = {
.irq_dest_mode = 0, /* Physical */
.disable_esr = 0,
- .dest_logical = APIC_DEST_PHYSICAL,
- .check_apicid_used = NULL,
+ .check_apicid_used = NULL,
.init_apic_ldr = uv_init_apic_ldr,
-
.ioapic_phys_id_map = NULL,
.setup_apic_routing = NULL,
.cpu_present_to_apicid = default_cpu_present_to_apicid,
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index de776b2..6c14f10 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -747,13 +747,14 @@ static void __init smp_quirk_init_udelay(void)
int
wakeup_secondary_cpu_via_nmi(int apicid, unsigned long start_eip)
{
+ u32 dm = apic->irq_dest_mode ? APIC_DEST_LOGICAL : APIC_DEST_PHYSICAL;
unsigned long send_status, accept_status = 0;
int maxlvt;
/* Target chip */
/* Boot on the stack */
/* Kick the second */
- apic_icr_write(APIC_DM_NMI | apic->dest_logical, apicid);
+ apic_icr_write(APIC_DM_NMI | dm, apicid);
pr_debug("Waiting for send to finish...\n");
send_status = safe_apic_wait_icr_idle();
@@ -980,7 +981,7 @@ wakeup_cpu_via_init_nmi(int cpu, unsigned long start_ip, int apicid,
if (!boot_error) {
enable_start_cpu0 = 1;
*cpu0_nmi_registered = 1;
- if (apic->dest_logical == APIC_DEST_LOGICAL)
+ if (apic->irq_dest_mode)
id = cpu0_logical_apicid;
else
id = apicid;
diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
index e82fd19..c35c24b 100644
--- a/arch/x86/xen/apic.c
+++ b/arch/x86/xen/apic.c
@@ -152,11 +152,9 @@ static struct apic xen_pv_apic = {
/* .irq_dest_mode - used in native_compose_msi_msg only */
.disable_esr = 0,
- /* .dest_logical - default_send_IPI_ use it but we use our own. */
- .check_apicid_used = default_check_apicid_used, /* Used on 32-bit */
+ .check_apicid_used = default_check_apicid_used, /* Used on 32-bit */
.init_apic_ldr = xen_noop, /* setup_local_APIC calls it */
-
.ioapic_phys_id_map = default_ioapic_phys_id_map, /* Used on 32-bit */
.setup_apic_routing = NULL,
.cpu_present_to_apicid = xen_cpu_present_to_apicid,